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Finding the Fourth Proportional to 63,180.64, 87,189.84 and 34,888.48

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Solution

The fourth proportional to 63,180.64, 87,189.84 and 34,888.48 is: 48,146.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,180.64 : 87,189.84 = 34,888.48 : x
  2. Step 2: Convert to fraction form
    63,180.64/87,189.84 = 34,888.48/x
  3. Step 3: Cross multiply
    63,180.64x = 87,189.84 × 34,888.48
  4. Step 4: Simplify right side
    63,180.64x = 3,041,920,989.04
  5. Step 5: Solve for x
    x = 3,041,920,989.04/63,180.64
  6. Step 6: Final answer
    x = 48,146.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.